Another name for it is pluton. Did you know when you take a bath feldspar is sometimes in your soap? Hardness:It has a hardness of 6 on Mohs hardness scale. Uses: It is used in glass manufacturing, ceramics, and pottery. Cleavage/Fracture It also has a perfect to good cleavage in two directions at 90 degrees but is also different. Did you know that about 60% of Earth's crust is made of feldspar? Luster:The luster of it is metallic. Color:Feldspar is a lot of colors like clear, gray, white, tan, pink, brown, or red. Streak:The streak of the feldspar is white. Density:The density is pretty low 2.5-2.8. Crystal Structure:The crystal structure of the feldspar is triclinic. Where it's found:Some of the main places to find it is Turkey, China, italy and Thailand. What it's Made of:It is made from crystalized magma. Special Characteristics:This is an igneous kind. It is associated with Hornblende and Quartz. It has a specific gravity of 2.56. Found in Iowa:it is over by the Cedar River in southeastern Linn County
Feldspar
Dakota Grabau, Victor Jackson
Another name for it is pluton. Did you know when you take a bath feldspar is sometimes in your soap? Hardness:It has a hardness of 6 on Mohs hardness scale. Uses: It is used in glass manufacturing, ceramics, and pottery. Cleavage/Fracture It also has a perfect to good cleavage in two directions at 90 degrees but is also different. Did you know that about 60% of Earth's crust is made of feldspar? Luster:The luster of it is metallic. Color:Feldspar is a lot of colors like clear, gray, white, tan, pink, brown, or red. Streak:The streak of the feldspar is white. Density:The density is pretty low 2.5-2.8. Crystal Structure:The crystal structure of the feldspar is triclinic. Where it's found:Some of the main places to find it is Turkey, China, italy and Thailand. What it's Made of:It is made from crystalized magma. Special Characteristics:This is an igneous kind. It is associated with Hornblende and Quartz. It has a specific gravity of 2.56. Found in Iowa:it is over by the Cedar River in southeastern Linn Countyhttp://wiki.answers.com/Q/What_is_feldspar%27s_cleavage
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http://www.geology.enr.state.nc.us/Mineral%20resources/feldmod.html
http://www.realgems.org/list_of_gemstones/feldspar.html
http://www.wisegeek.com/what-is-feldspar.htm
http://www.igsb.uiowa.edu/Browse/minerals/minerals.htm